Created
February 19, 2023 20:25
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Unity Event Bus
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| using System.Collections.Generic; | |
| using System; | |
| public class EventBus | |
| { | |
| private static EventBus instance = null; | |
| public static EventBus Instance | |
| { | |
| get | |
| { | |
| if (instance == null) | |
| { | |
| instance = new EventBus(); | |
| } | |
| return instance; | |
| } | |
| } | |
| private Dictionary<Type, Delegate> eventDictionary; | |
| private EventBus() | |
| { | |
| eventDictionary = new Dictionary<Type, Delegate>(); | |
| } | |
| public void AddListener<T>(Action<T> listener) where T : class | |
| { | |
| if (eventDictionary.ContainsKey(typeof(T))) | |
| { | |
| eventDictionary[typeof(T)] = Delegate.Combine(eventDictionary[typeof(T)], listener); | |
| } | |
| else | |
| { | |
| eventDictionary.Add(typeof(T), listener); | |
| } | |
| } | |
| public void RemoveListener<T>(Action<T> listener) where T : class | |
| { | |
| if (eventDictionary.ContainsKey(typeof(T))) | |
| { | |
| eventDictionary[typeof(T)] = Delegate.Remove(eventDictionary[typeof(T)], listener); | |
| } | |
| } | |
| public void TriggerEvent<T>(T eventObject) where T : class | |
| { | |
| if (eventDictionary.TryGetValue(typeof(T), out Delegate listener)) | |
| { | |
| ((Action<T>)listener)?.Invoke(eventObject); | |
| } | |
| } | |
| } |
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